In Pattern Activation/Recognition Theory of Mind (Frontiers in Computational Neuroscience, doi 10.3389/fncom.2015.00090), I have shown that neurons can describe other neurons, including themselves. So neurons can auto-describe.

That capability would then be the conduit to self-recognition, building on this self-description. In other terms, neural auto-description would embody self-recognition at the most elementary descriptive level.

Regards. Bertrand du Castel.